Dethiobiotin synthetase BioD

UniProtKB accession:  P9WPQ5

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UniProtKB description:  Catalyzes a mechanistically unusual reaction, the ATP-dependent insertion of CO2 between the N7 and N8 nitrogen atoms of 7,8-diaminopelargonic acid (DAPA, also called 7,8-diammoniononanoate) to form a ureido ring (PubMed:20565114). Can use a range of NTPs; has highest affinity for CTP (KD is measured as 17.2 uM or 0.160 uM in 2 different papers) while KD for ATP is 331 uM or 75 uM in the same papers. Gly-169 plays a role in NTP discrimination (PubMed:25801336, Ref.5).